公开(公告)号：US12072582B2

公开(公告)日：2024-08-27

申请号：US18490107

申请日：2023-10-19

Applicant: TOPPAN Inc.

Inventor： Yusuke Takahashi ,  Yuji Kataoka

IPC: G02F1/1337

CPC classification number: G02F1/133788 ,  G02F1/133784

Abstract: A transparent substrate for a liquid crystal device includes an alignment layer that regulates an alignment direction of liquid crystal molecules contained in a liquid crystal layer of the liquid crystal device, and a base layer on which the alignment layer is formed. The transparent substrate includes a first surface and a second surface opposite the first surface. The first surface is a surface of the alignment layer, and the second surface is a surface of the base layer. The coefficient of static friction between the first surface and the second surface is less than or equal to 1.3. The transparent substrate has a hardness of F or higher in a pencil harness test on the first surface or on a surface of the base layer opposite the second surface.